Boiler-furnace



(No Model.) 2 Sheets-Sheet 1 J. W. WARNER.

BOILER FURNACE.

Patented Novp30, 1897.

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2 Sheets8heet 2.

(No Model.)

J. W. WARNER. BOILER FURNACE.

Patented Nov 30,1897.

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NITED STATES PATENT OFFICE.

JUDSON NV. \VARNER, OF ONEIDA, NEXV YORK.

BOILER-FURNACE.

SPECIFICATION forming part of Letters Patent No. 594,817, dated November 30, 1897.

Application filed May 26,189'7- Serial No. 638,252. (No model.)

To ctZZ whom it may concern:

Be it known that 1, J UDsoN W. WARNER, of Oneida, in the county of Madison and State of New York, have invented certain new and usefullmprovements in Boilers or Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the This invention relates to certain new and useful improvements in boilers and furnaces of that class in which means are provided for introducing or feeding air or steam beneath thegrates.

It has for its objects, among others, to provide improved means for accomplishing this purpose and to equalize the draft over practically the entire grate-surface to induce a more thorough combustion of the fuel and at the same time increase the heating capacity of the fire in connection with the boiler.

The invention also consists in means whereby steam may be admitted and caused to commingle with the air before it has reached the grates,and thus serve toinsure a more perfect consumption of the fuel.

The invention further consists in the details of construction and arrangement of the several parts, all as more fully hereinafter described, shown in the drawings, and then particularly pointed out in the claims.

In the accompanying drawings,Figure 1 is a perspective view of a boiler or furnace constructed in accordance with my invention, parts being broken away to more clearly show the arrangement of the various parts constituting the present improvement. Fig. 2 is a transverse section taken on the line 00 cc of Fig. 1. Fig. 3 is a longitudinal sectiontaken through the grates.

Like numerals of reference indicate like parts throughout the several views.

Referring to the drawings the numeral 1 indicates a boiler orfurnace which may be of any desired or usual construction, but provided, as shown, with a plurality of segmental grates which are supported at each end upon the pipes 3, to which they may be securely fastened or arranged to rotate, if desired. The outer ends of each of these pipes are arranged within or extend into a longitudinal chambers, Ts 0r elbows 4 or other pipe-fixtures may be used, as seen in Fig. 1, so that a free circulation of air the full size of the pipes may be taken from either way without the liability of being obstructed by the ends of the pipe coming against the side of the chamber, which also keeps the pipes in position in the chamber as Well as in the grates. They also serve as a convenient appliance for drawing out the pipes when it is desired. In the construction of the longitudinal chamber it is so provided that by removing the side doors or openings made opposite these pipes they may be drawn out, so that the grates may be easily removed and the pipes again replaced with new grates, without any expense or trouble, the same as at first. This is a most essential feature of the construction.

To provide means for communication or regulation of the draft or the amount of air to the longitudinal chamber doors or other analogous devices may be provided, located over feed-openings and operated by any of the usual methods of regulating similar draft doors and dampers, so as to admit the required amount of draft or air into said chambers as may be needed or desired; or by a simple device the door may be made fast to form a tight box into which steam could be turned, or a thorough admixture of the steam and air can be made before passing to the grate.

.Along the opposite sides of the boiler or furnace and communicating with the longi-' tudinal chamber 5 are elongated removable plates 6, whereby access can be had to the said chambers and the parts contained therein properly positioned relatively to the grates with which they coact. The arrangement of the pipes 3 in connection with the elongated chamber provides means whereby the oxygen of the air is admitted at each end of the grate and institutes a similar or equal draft at all points under the firebed. It will be constructed as to permit the air and steam coming thereinto to pass out from the same as desired.

The longitudinal chamber is shown as being recessed in the side of the boiler; but

this chamber may also be arranged on the outside of the boiler or brickwork and situated in various other places'from which the pipes may lead to the grates. Other minor changes in the details of construction can be made without in the least departing from the spirit or nature of the invention.

I deem it important that the pipes 3, which form the support of the grates, be, as shown, short pipes, one at each end of the grate and extending for a portion only of the length of the grate, whereby I am enabled to secure equal distribution of the air without the necessity of perforating the pipes, as is necessary where they extend the whole length of the grates, and, furthermore, this form of pipe facilitates the removal and replacement of the grates when desired.

\Vhat I claim as new is 1. In a boiler or furnace, the combination of grates, a longitudinal chamber, and short pipes communicating with said chambers at opposite ends of the grates and forming the support for said grates with their adjacent ends terminating at a distance from each other, substantially as and for the purpose specified.

2. In a boiler or furnace, the combination with the grates, of longitudinal chambers at opposite sides of the boiler, short pipes havin g their outer ends extended into said chambers and their inner ends supporting the ends of the grates and terminating at a distance from each other whereby equal distribution of the air is provided beneath the grates, substantially as specified.

3. In a boiler or furnace, the combination of grates, a longitudinal chamber at each side of the boiler, short pipes extending into the said chambers and having their inner ends supporting the grates and terminating at a distance from each other, and pipe-fixtures on the outer ends of said pipes within the chambers, substantially as and for the purpose specified.

l.- In a boiler or furnace, the combination of grates, longitudinal chambers at opposite sides of the boiler, short pipes extending into said chambers and having their inner ends forming supports for the grates and terminating at a distance from each other, and removable plates forming the outer walls of said chambers, substantially as and for the purpose specified.

In testimony whereof I have signed this specification in the presence of two subscribin g witnesses.

JUDSON W. WARNER.

lVituesses:

DANIEL A. SCH'UYLER, FRED BANKS. 

